A Python WARNING alert

How to solve this Warning

WARNING: Secure coding is not enabled for restorable state! Enable secure coding by implementing NSApplicationDelegate.applicationSupportsSecureRestorableState: and returning YES.

It’s really not possible for us to do anything other than put your error message into Google for you unless you show us your full code that generated this error.

from tkinter import *
from tkinter import ttk
root = Tk()
ttk.Button(root, text="Hello World").grid()
root.mainloop()

This is the code, thanks Jeremy

Sounds like Mac specific issue. Try updating Python and possibly the packages as well.